Apple Watch Ultra 2 Technical Specifications

Material and Finish

Aerospace-grade titanium case

Size and Weight
  • Height: 49mm
  • Width: 44mm
  • Depth: 14.4mm
  • Weight: 61.4 grams
  • Fits 130–210mm wrists
Hardware and Buttons
  • Microphone
  • Speaker
  • Customizable Action button
  • Siren/Speaker
  • GPS antennas
  • Microphone
  • Side button
  • Microphone
  • Digital Crown
  • Depth gauge/water temperature sensor
  • Customizable Action button
  • Digital Crown with haptic feedback
  • Side button
  • Double tap gesture
  • Siri with on‑device processing
  • S9 SiP with 64-bit dual-core processor
  • 4-core Neural Engine
  • 64GB capacity
  • Electrical heart sensor
  • Third-generation optical heart sensor
  • Temperature sensing1
  • Depth gauge ±1m accuracy
  • Water temperature sensor
  • Compass
  • Always-on altimeter
  • High-g accelerometer
  • High dynamic range gyroscope
  • Ambient light sensor
Health and Wellness
  • Blood Oxygen app2
  • ECG app3
  • Cycle Tracking app with retrospective ovulation estimates4
  • Heart Rate app
  • High and low heart rate notifications
  • Irregular rhythm notifications5
  • Medications app
  • Mindfulness app
  • Noise app
  • Sleep app including sleep stages
  • Always-On Retina LTPO OLED display
  • Flat sapphire crystal display
  • Up to 3000 nits maximum brightness
  • 1 nit minimum brightness
  • 326 pixels per inch
  • Night Mode using Modular Ultra or Wayfinder watch face
  • Three-microphone array with beamforming and wind noise mitigation
  • Dual speakers
Power and Battery Life
  • Multiday battery life, up to 36 hours of normal use6
  • Up to 72 hours in Low Power Mode6
  • Built-in rechargeable lithium-ion battery
  • Fast-charge capable7
  • Up to 80% charge in about 1 hour7

Learn more

Operating System
  • watchOS 10
  • watchOS is the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe and connected.

Learn more about watchOS 10

Workouts and Activity
  • Custom interval workouts
  • Customizable Workout Views
  • Heart Rate Zones
  • Race Route
  • Precision Start using Action button
  • Stride length, ground contact time and vertical oscillation
  • Automatic track detection
  • Multisport workout

  • Bearing, incline, elevation and coordinates
  • Custom waypoints
  • Automatically generated waypoints to cellular connectivity
  • Backtrack GPS data
  • Elevation alerts
  • Topographic maps for over 1000 national and regional parks (U.S. only)

  • Average speed, elevation gained and distance
  • Connection to cycling accessories via Bluetooth
  • Functional Threshold Power
  • Power Zones
  • Cadence
  • Live Activity on iPhone

  • Pool swim or open-water swim
  • Splits and auto sets
  • SWOLF score
  • Stroke type tracking
  • Automatic stroke detection
  • Kickboard
  • Average pace, total distance and laps

  • Recreational dive to 40m
  • Dive computer app (available on the App Store)8
  • Automatic launch at 1m
  • Current and maximum depth duration
  • GPS entry and exit points
  • Depth gauge
  • Water temperature sensor

More Workouts
  • Emergency SOS9
  • International emergency calling10
  • Siren
  • Crash Detection9
  • Fall Detection
  • Last Emergency Call Availability Waypoint
  • Water resistance 100m under ISO standard 22810:201011
  • Dust resistance IP6X under IEC 6052912
  • EN13319 recreational scuba diving to 40m (±1m accuracy)
  • Tested to MIL-STD 810H against subsections for altitude, high temperature, low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, and shock and vibration
  • LTE and UMTS13
  • Precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS and BeiDou)
  • Wi-Fi 4 (802.11n)
  • Bluetooth 5.3
  • Second-generation Ultra Wideband chip14
  • Apple Pay
  • GymKit
  • Supports Apple Watch for kids using Family Setup15

Built-in accessibility features supporting vision, mobility, hearing and cognitive disabilities.

Learn more

Features include:
  • VoiceOver
  • Zoom
  • On/Off Labels
  • Reduce Transparency
  • Increase Contrast
  • Colour Filters
  • Text Size
  • Bold Text
  • Reduce Motion
  • Hourly Chimes
  • AssistiveTouch
  • Button Click Speed
  • Touch Accommodations
  • Auto-Answer Calls
  • Type to Siri
  • RTT Support
  • Audio Volume Balance
  • Audio Transcription
  • Live Speech
  • Accessibility Shortcut
  • Mono Audio
  • Taptic Time
  • Personal Voice
Environmental Requirements
On-wrist operating temperature:

–20° to 55° C (–4° to 130° F)

Operating temperature:

0° to 35° C (32° to 95° F)

Nonoperating storage temperature:

–20° to 45° C (–4° to 113° F)

Dive operating temperature:

0° to 40° C (32° to 104° F)

Relative humidity:

5% to 90% noncondensing

Operating altitude:

–500m to 9000m (–1600 feet to 29,500 feet)

Apple Watch Ultra 2 and the Environment

Apple Watch Ultra 2 paired with Alpine Loop or Trail Loop is designed to reduce environmental impact:16

See the Apple Watch Ultra 2 Product Environmental Report (PDF)

Progress toward Apple 2030

Apple Watch Ultra 2 paired with Alpine Loop or Trail Loop is one of Apple’s first carbon‑neutral products:

  • 30% recycled or renewable content17
  • 100% of manufacturing electricity sourced from clean electricity18
  • 50% or more shipped without airplanes19
  • 81% emissions reduction against baseline20
  • 12 kg CO2e or fewer total remaining emissions covered by high-quality carbon credits21

See Apple’s commitment


Carbon-neutral Apple Watch Ultra 2 paired with Alpine Loop or Trail Loop has 30% recycled content, including:

  • 95% recycled titanium in the case
  • 100% recycled cobalt in the battery22
  • 100% recycled gold in the plating of multiple printed circuit boards
  • 100% recycled tin in the solder of multiple printed circuit boards
  • 100% recycled tungsten and copper wire in the Taptic Engine
  • 100% recycled rare earth elements in all magnets
  • 100% recycled copper foil in the main logic board
  • 20% recycled plastic from water bottles in the antenna line
  • 100% fibre-based packaging23
  • 38% recycled content in fibre packaging


  • 100% of manufacturing electricity for Apple Watch Ultra 2 and Alpine Loop or Trail Loop is sourced from clean electricity
  • 100% of expected customer energy use matched with clean electricity24
  • Meets California Energy Commission’s energy efficiency standards for battery charger systems25


  • No established final assembly sites generate waste sent to landfill as part of Apple’s Zero Waste Program

Smarter chemistry26

  • Arsenic-free display glass
  • Mercury-, BFR- and PVC‑free
  • Meets European REACH regulation on nickel

Apple Trade In

Trade in your eligible device for credit toward your next purchase, or get an Apple Gift Card you can use anytime.27 If your device isn’t eligible for credit, we’ll recycle it for free.

See how it works


iPhone Xs or later with iOS 17 or later

In the Box
  • Apple Watch Ultra 2
  • Band
  • Apple Watch Magnetic Fast Charger to USB‑C Cable (1m)